Tag Archives: Exchange Online

We all have come across in situations where we accidentally hit on send button before finish composing the email. Or sent an email to people who you shouldn’t have sent it to. These are times we wish if we could undo that action. This is an option that is available with Google’s Google Apps for Work and free… Read More »

A popular migration mode for organization with an on-premises deployment of Microsoft Exchange Server is to use remote move migration. During a migration, regardless of the migration mode, there can be issues that prevents a migration batch from succeeding. This post is about one of those issues which a customer of mine brought to me… Read More »

Last year Microsoft announced support for DomainKeys Identified Mail (DKIM) signing for outbound emails in Office 365. If you are wondering what DKIM is, below is an excerpt from Microsoft blog describing what DKIM is in its simplest form. DKIM permits the person, role or organization, who owns the signing domain, to claim some responsibility for… Read More »

I was working on an Exchange Online and Exchange Server hybrid environment where the customer complained that on premises users cannot view free/busy status of Exchange Online users. Primary cause for this issue to occur is, if certificate and other metadata information in the Microsoft Federation Gateway or in the on-premises environment become stale or invalid.

Error: MigrationPermanentException: You can’t use the domain because it’s not an accepted domain for your organization. –> You can’t use the domain because it’s not an accepted domain for your organization. A small configuration mistake that can go unnoticed to many system admins who are new to Office 365 and Microsoft Exchange hybrid environments will result in above… Read More »